As alleged details continue to leak ahead of the expected Apple announcement on March 7th, the Wall Street Journal claims that an LTE-compatible variant of the new tablet will be available to AT&T and Verizon customers.

Verizon Communications Inc. and AT&T Inc. will sell a version of the coming iPad that runs on their newest fourth-generation wireless networks, according to people familiar with the matter.

Right now, it appears that the two biggest US carriers are the only ones with enough 4G infrastructure in place to handle the expected influx of LTE users so we'll have to wait and see if Sprint and T-Mobile follow suit. The WSJ also reports that the device should flip back to the 3G network when 4G isn't available. [Wall Street Journal via MacRumors]